Inferences from surveys about the presence of an unobserved species: estimating the probability that a species is present at a random sampling point.

Nicholson, M. and Barry, J. (1995) Inferences from surveys about the presence of an unobserved species: estimating the probability that a species is present at a random sampling point. Oikos, 72 (1). pp. 74-78. ISSN 1600-0706